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Hydraulic, wind, geothermal, marine energy, biogas ...Gasification of wood, cogeneration and green electricity

Renewables except electric or solar thermal (see sub-forums dedicated below): wind, marine energy, water and hydroelectricity, biomass, biogas, deep geothermal ...
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Christophe
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Gasification of wood, cogeneration and green electricity

Unread Messageby Christophe » 17/07/07, 10:27

As the subject intrigued quite a few people, here is a concrete example of a wood gas cogenerator.

Alors que les énergies renouvelables étaient à la peine, la menace de pénurie pétrolière et le changement climatique leur ont donné un coup de fouet. Mais des pionniers sont au travail depuis longtemps...

The Bosshard family, which together with Woodpower AG near Wila in the canton of Zurich produces CO2-neutral current and heat through wood gasification.

The idea was born three years ago: father and son Bosshard, owners of a wood construction company in Wila, wanted to secure their future by seeking new prospects.

"Woodpower was born out of necessity, but not only. There was also an interest in new technologies because we are a family of do-it-yourselfers, and then we wanted to do something for the environment, "says Oliver Bosshard with pride.

By chance, they fell on a small wood gasification plant and began to think about the possibility of commercial exploitation. They have done research on the Internet, sought contacts and investors around the world.

During the change of supply network, the Zurich-based electricity company EKZ became aware of the existence of the company and was interested in it. Today, EKZ owns 49% of the capital of Woodpower.

Technologie indienne

On utilisait déjà des carburateurs à bois à l'époque de la 2e Guerre mondiale, notamment pour remplacer l'essence. Ils étaient alimentés avec du bois de hêtre et installés sur des camions. Ensuite, cette technologie est tombée dans l'oubli.

Moreover, the Bosshard found no model of commercial exploitation in Europe. But, finally, in India, where there were forty years of experience. "It's rather curious to go and seek know-how in a country that, if not, does not matter any of the Western countries," says Oliver Bosshard.

Pour produire de l'électricité, l'entreprise utilise des déchets de bois inutilisés récoltés dans les environs. «Ici, il y a bien assez de bois. S'il fallait le transporter sur de longues distances, le bénéfice pour l'environnement et l'entreprise serait réduit.»

Le vieux bois est d'abord brûlé, et produit du gaz de bois, composé de monoxyde de carbone, de dihydrogène et de méthane. Avant d'introduire le gaz dans le générateur de courant, il faut le débarrasser de toute trace de goudron, lequel est évacué avec les déchets spéciaux.

The combustion of wood is part of the natural cycle of carbon: it does not give off more CO2 than it had to the tree for its growth, so that the electricity produced is neutral compared to Greenhouse gas emissions.

Heat and current

But electricity accounts for only a third of production. The essential thing is the heat. A small part is used to dry the wood used for the production of electricity. And the greater part to make wooden pads. The more dry they are, the better the combustion.

Oliver Bosshard added that since the facility was commissioned at the beginning of the year, they are falling under demand. He does not know if his adventure is going to be a school in Europe. But 'childhood illnesses' have now passed, only a few adjustments remain to be made. According to his most conservative estimates, his business will be profitable in two years.

The Energy of the Future


For EKZ and the Bosshard, this innovative and unique installation plays a pilot role, also a demonstration role: there are daily visitors. Banks and electricity groups invest in renewable energies, in short, the green current is very trendy.

La Confédération veut, elle aussi, encourager ce secteur. C'est ce qu'explique Michael Kaufmann, vice-directeur de l'OFEN: «Des projets tels que celui de Wila ont de l'avenir. La Suisse a un grand potentiel pour ce qui est de la biomasse, du bois, des déchets organiques, et il s'agit de l'exploiter. C'est de l'énergie qui est devant notre porte.»

Michael Kaufmann is pleased to see this kind of project happen. But this type of installation must have a certain size, not too important either, so as not to harm the environment, for example with too long transports.

Advance cautiously

Recently, the United Nations has warned of the negative effects of bioenergy, but its benefits should not be ignored. "I would like to point out that fossil fuels have far more serious effects on the environment and society," says Michael Kaufmann.

"As this is just the beginning of renewable energies, we have the opportunity to learn the lessons we need." And, therefore, to avoid negative developments. "The use of biomass must not harm the population, agricultural production or the ecosystem."

Swissinfo, Gaby Ochsenbein
(Translation and adaptation of the German: Isabelle Eichenberger)


Found on: http://www.econologique.info/index.php/ ... issinfoorg
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Matos
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Unread Messageby Matos » 22/07/09, 09:43

Thanks for the article! They are strong these Germans!: D

If you want I have a blog on which I speak of my gasifier "home made". I also talk about my wood gasifying stove for camping. It would be cool that you give me your opinions, remarks, my technical choices and that one exchanges on the subject.

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Thomas
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Unread Messageby Remundo » 22/07/09, 10:58

Hi Christophe and Thomas,

It does not surprise me that the Germans are starting serious experiments in gasification / thermolysis of biomass.

In France, everything is at a standstill ... it may be like wind turbines and solar: in 10 / 15 years, we will import everything Made in Germany for our EnR ...

However, we have very intelligent people working on the thermonuclear fusion with tens of billions of euros ... and on the fission of the EPR itou :?

According to the (optimistic) confession of the promoters of the ITER fusion project "the technology will be ripe in 2100" : Cheesy:

The Peak-Oil is now, guys, and I do not even talk about the follies, pardon, the technological challenges required and generated by nuclear fusion ... : Idea:

Otherwise, to avoid ranting and learn about the subject of biomass gasification, I advise reading the following:
https://www.econologie.com/forums/thermolyse ... t5012.html
et
http://sycomoreen.free.fr/PHRSD_FAQ_fra.html
(30 may 2008, at the bottom of the page at the very beginning of the FAQ ...)
And a "gasogenic" research on econo ... :P

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Unread Messageby dirk pitt » 22/07/09, 11:59

Matos wrote:Thanks for the article! They are strong these Germans!: D

If you want I have a blog on which I speak of my gasifier "home made". I also talk about my wood gasifying stove for camping. It would be cool that you give me your opinions, remarks, my technical choices and that one exchanges on the subject.

@ +

Thomas


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Matos
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Unread Messageby Matos » 22/07/09, 13:18

HOo no! You too stupid! ! I forgot to give the Link! No wonder no one comes to see my gasifier! The : Cry:

Good, then it is:

http://green-life-project.over-blog.fr/

Here!

Good visit ^^


Thomas
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